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Dvinal [7]
2 years ago
6

What is the pattern of the numbers 1,3,6,10,15,21,28,36

Mathematics
1 answer:
LekaFEV [45]2 years ago
7 0
2 ,3 ,4 ,4 ,5. ,6 etc
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What is the factored form of y^2+6y-16
Vlada [557]
<h2><em>y 2 + 6 y − 16 = ( y + 8 ) ( y − 2 )   </em></h2><h2 /><h2><em>Explanation: </em></h2><h2><em>Note that in general: </em></h2><h2 /><h2><em>( y + a ) (y − b ) = y 2 + ( a − b ) y − a b </em></h2><h2 /><h2><em>So we want to find a pair of factors  a  and  b  of  16  which differ by  6 .  </em></h2><h2><em>The pair  8 , 2 works in that  8− 2 = 6  and  8 ⋅ 2= 16 . </em></h2><h2 /><h2><em>Hence: </em></h2><h2><em> y 2 + 6 y − 16 = ( y+ 8 ) ( y − 2 )</em></h2><h2><em>y=2,-8</em></h2>
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3 years ago
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What is a square a parallelogram but a parallelogram not a square a square
Alinara [238K]
A square has both parallel sides
being the top and bottom
but also both the sides 

AND so does a PARALLELogram
BUT a square has ALL right (90 d) angles 
and a parallelogram does NOT 

ALSO . . . . . SUMMARY . . . . .  
The sides of a square are parallel
and all the angles equal 360 degrees,
so it's a parallelogram. BUT a
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because a squares angles need to be 90 degrees.

does that answer your question?
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Libby reads for 0.75 of an hour every night. How many hours will she read in 1 week. <br> show work
Norma-Jean [14]

Answer:

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Angle 1 is a vertical angle with 6
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2 years ago
If PQRS is a rhombus, which statements must be true? Check all that apply.
bezimeni [28]
These statements are true:

\bold{First.} \ \overline{PS} \ is \ parallel \ to \ \overline{QR}

This is <em>true</em> because of the definition of a rhombus which states that opposite sides are parallel.

Then \ \overline{PS} \ is \ opposite \ to \ \overline{QR}

\bold{Second.} \ \overline{PR} \ is \ perpendicular \ to \ \overline{QS}

This is <em>true </em>because the diagonals of a rhombus bisect each other at right angles.

\bold{Third.} \ \overline{PQ}=\overline{RS}

This is<em> true</em> because the four sides of a rhombus are all equals.

\bold{Fourth.} \ \angle PQR \ is \ supplementary \ to \ \angle QPS

This is also <em>true</em>. Two angles are supplementary when they add up to 180 degrees. Angles in rhombus are equal two to two. Let's name:

\angle PQR = \alpha \ and \ \angle QPS = \beta 

Then it is true that:

\angle PQR=\angle PSR \ and \ \angle QPS=\angle QRS

Besides, a rhombus is a quadrilateral and it is true that the interior angles of a quadrilateral add up to 360 degrees, thus:

2\alpha+2\beta=360 \\ \\ \therefore \boxed{\alpha+\beta = 180^\circ}

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3 years ago
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